Priming means for motor-cycle engines



May 5, 1925 1,536,532

A. scHULzE ET AL PRIMING MEANS EOE MoTR CYLE ENGINES Filed AApril 19, 1924 futon/w11 lll Patented May 5, '1925.

UNITED STATES ARTHUR SCHULZE AND HARRISON SCHULZE, OF DEER PLAlN, ILLNOIS.

IPRIMING MEANS FDR MOTOR-CYCLE ENGINES.

Application filed April 19, 19124. Serial No. 707,709.

To all whom t may concern:

Be it known that we, ARTHUR SCHULZE and HARRISON SoriULzn, citizens of the United States, residing at Deer Plain, in the county of Calhoun and State of Illinois, have invented certain new and useful lmprovements in Priming Means for Motor- Cycle Engines, of which the following is a specification.

This invention relates to priming means or devices for motor-cycles, and particularly to a device operable to automatically prime the cylinders; of a motor-cycle engine upon the operation of a motor control device.

An object of the invention resides in providing a valve connection with the cylinders o-f a motor-cycle operable to open and close the passages from a suitable form of pump adapted to force a predetermined charge of gasoline into said cylinders.

Another object of the invention is to provide pet cocks in each of the cylinders of a motor-cycle having pipes connected thereto communicating with the outlet of a pump mounted in the gasoline tank of the motorcycle, which is operable for forcing a charge of fuel through said pipes and into the cylinderswhen the pet cocks are in open position, means being provided for controlling the pet cocks adapted to be opened or closed, all of said pet cocks upon the operation of a suitable manually operable lever.

The invention further includes other objects and improvements in the details of construction and arrangement of the parts, which are more particularly pointed out in the following description and claim directed to a preferred form of the invention, it being understood however, that variations may be made in this construction without departing from the scope of the invention as described and claimed.

In the drawing forming a part of this ap plicationd Figure 1 is a side. elevational view of the gasoline tank, and a portion of the motorcycle cylinders showing the invention applied thereto.

Figure 2 is a vertical sectional view thro-ugh one of the pet cocks.

Figure 3 is a vertical sectional view through thc lower end portion of the fuel pump, and d Figure 4: is a detail View on an enlarged scale, showing the manner of connecting the phere 16.

operating rod to the lever carried by one of the pet cocks.

1 indicates a motor-cycle` gasoline tank, and 2 the cylinders of the motor-cycle en gine. A fuel pump 3 has the cylinder portions L1` thereof mounted in the tank 1, and provided with an inlet 5 controlled by a suitable checlr valve (l for permitting the inlet of fuel from the tank to the pump cylinder upon the operation 0f the piston 7 by the operating handle 3. The outlet pipe 9 of the fuel pump 3 extends through the bottom of the tank 1, and from the lower end of which extend a pair of branch pipes 10, which are connected with the bosses 11 of pet cocks 12, one pet cock being mounted in each cylinder.

rllhepet cock 12 is formed with an eX- teriorly screw threaded projection 13, and which is formed with passages 1&1 and 15 respectively, the passage 14 extending through the pet cool; to provide communication with the branch pipe 10, while the passage 15 communicates with the atmos- The threaded projection 13 is fitted in the corresponding threaded opening in the cylinders2in order that both passages 1e and 15 will communicate with a combustion chamber of the cylinder. The pet cock 12 is formed with a tapered recess extending transversely of the passages: 14 and 15, for receiving a. tapered valve plug 18, rotatably tted in the jaw of the pet cock and provided with passages 19 and 20, respectively, for controlling the passages 14e and 15, and adapted to be alined with the respective passages 14E and 15 for controlling the communication between the passages at opposite sides of the valve plug. One of the valve plugs is provided with an ope-rating lever 21 connected by a linlr 22, through a, il-shaped operating lever 23 mounted on the plug of another pet cock, the arm 211 of said operating lever 23 being arranged in a corresponding angular relation with the arm 21, while the arm 25 of said operating lever receives an eye member 2G, through which slidably extends the operating rod 2T. Stops 28 and 29 are mounted on the operating rod 27 at each side of the eye. member 26, and in spaced relation thereto, adapted in the operation of the rod member to operate the lever 23. The rod 27 is slidably mounted in guides 30 on the outside of the gasoline tank v1, and at the llO upper end is provided with a handle 3l, which is in convenient reach ot the operator of the motor-cycle, and through which the operation of the valve plugs 18 is eli'ected.

lVith a construction et this character, the cylinders 2 may be primed by drawing the handles 8 and 3l ota the fuel pump 3 and the operating rod 2"? upwardly at the same time, which will operate to supply the cylinder 4E with a charge of fuel, while the operating,` rod 27, the lever connections Q1 and 23 and theI link connection will rotate the valve plugs l?) to provide conmiunication ot the combustion engine ot the cylinder with the atmosphere for exhausting compressed gas in the cylinders.

Following' this, a downward movement of the handles 8 and 3l, is etl'ected which will operate the rod [i for rotatingl the valve plugs 18 to aline the passage 19 with the passage M, so that the downward movement ot the pump piston T will torce the charge ot' gas contained in the cylinder el; through the pipe connections 9 and lll and supply a charge of priniing' fuel to the. cylinders 2. litter the rod 2T is move'L to its lower limit, the stop Q9 will engage the operating,` lever 3, for rotating); the valve plugs 18 to close the passages il, and l5, after which the n'iotor-eycle engine may be easily started.

From the abovedeseription, it should be readilyv appreciated that a simple and coavenient form of priming device has been provided for motor-cycles, which is easily operable for priming,` the cylinders ot the. -lnotor-cycle simultaneously in a single operation ot the handles 8 and 3l.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is:

A structure of the class described comprising a n'ianually operated pump including a cylinder and plunger reciproeable therein, a valved intake connected with said cylinder, and a discharge pipe leading ji'rorn the bottom oiu the cylinder, oppositely er-L- tending branch pipes connected w'th said discharge pipe, pet cocks to which the outer ends ot.' said branch pipes are connected, said cocks including a, casing provided with parallel bores, the branch pipe communicating); with one bore, and the other bore constituting' au air )assage and being;v open to the atmosphere, a rotary turn plug in each casing', said plug' being' 'lrovided with ports in registry with each ot said bores, a crank arm connected with one turn plug'. a bell crank connected with the other turn plug', a link connecting said arm and one of the arms of the bell crank, and an operating;Y rod connected to the remaining arm ot the bell crank.

ln testimony whereof we allix our siguaturcs.

ARTHUR SCHULZE. HAR Rl SON SCHULZ E (ill 

